Patents by Inventor Sheldon RITCHIE
Sheldon RITCHIE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12098607Abstract: A downhole vibration tool includes a body, a mandrel, a spring, and a balance piston. The body may be generally tubular and may have one or more helical slots formed on an inner surface thereof. The mandrel may be generally tubular, may have a bore, and may be positioned at least partially within the body. The mandrel may have one or more helical splines formed on an outer surface of the mandrel, the helical splines engaging the helical slots of the body such that the mandrel is translatable axially relative to the body. The spring may be positioned in an annular space formed between the mandrel and the body defined as a spring chamber. The balance piston may be in an annular space formed between the mandrel and the body, wherein the balance piston separates an oil-filled chamber from an internal pressure chamber.Type: GrantFiled: November 16, 2022Date of Patent: September 24, 2024Assignee: TURBO DRILL INDUSTRIES, INC.Inventors: Sheldon Ritchie, Mark Adam, Chad Feddema
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Publication number: 20230151706Abstract: A downhole vibration tool includes a body, a mandrel, a spring, and a balance piston. The body may be generally tubular and may have one or more helical slots formed on an inner surface thereof. The mandrel may be generally tubular, may have a bore, and may be positioned at least partially within the body. The mandrel may have one or more helical splines formed on an outer surface of the mandrel, the helical splines engaging the helical slots of the body such that the mandrel is translatable axially relative to the body. The spring may be positioned in an annular space formed between the mandrel and the body defined as a spring chamber. The balance piston may be in an annular space formed between the mandrel and the body, wherein the balance piston separates an oil-filled chamber from an internal pressure chamber.Type: ApplicationFiled: November 16, 2022Publication date: May 18, 2023Inventors: Sheldon Ritchie, Mark Adam, Chad Feddema
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Patent number: 10907410Abstract: A bearing housing for a bottomhole assembly of a downhole tool includes an upper bearing housing, lower bearing housing, and a driveshaft. The upper bearing housing and lower bearing housing include a bore defining a bore longitudinal axis. The outer surface of the upper bearing housing defining a bearing housing longitudinal axis, the bearing housing longitudinal axis formed at an angle to the bore longitudinal axis. The upper bearing housing may be formed by forming a bore through an upper bearing housing blank and subsequently forming the outer surface of the upper bearing housing concentric with the bearing housing longitudinal axis.Type: GrantFiled: March 18, 2020Date of Patent: February 2, 2021Assignee: TURBO DRILL INDUSTRIES, INC.Inventors: Sheldon Ritchie, Chad Feddema
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Patent number: 10753152Abstract: A rotor catch assembly includes a rotor catch housing and a rotor catch stem. The rotor catch housing is tubular and includes a landing ring formed on an inner surface thereof. The rotor catch stem is tubular and includes an annular landing flange about the rotor catch stem. The landing flange is positioned within the bore of the rotor catch housing above the landing ring. The interior of the rotor catch stem defines a rotor catch stem bore, which is coupled to the bore of the rotor catch housing below the landing ring by a rotor catch nozzle. The rotor catch stem includes a piston assembly, burst disk assembly, or nozzle assembly positioned to reduce or stop flow through the rotor catch stem bore through the rotor catch nozzle until the landing flange of the rotor catch stem lands on the landing ring of the rotor catch housing.Type: GrantFiled: January 9, 2020Date of Patent: August 25, 2020Assignee: TURBO DRILL INDUSTRIES, INC.Inventors: Sheldon Ritchie, Chad Feddema
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Publication number: 20200217138Abstract: A bearing housing for a bottomhole assembly of a downhole tool includes an upper bearing housing, lower bearing housing, and a driveshaft. The upper bearing housing and lower bearing housing include a bore defining a bore longitudinal axis. The outer surface of the upper bearing housing defining a bearing housing longitudinal axis, the bearing housing longitudinal axis formed at an angle to the bore longitudinal axis. The upper bearing housing may be formed by forming a bore through an upper bearing housing blank and subsequently forming the outer surface of the upper bearing housing concentric with the bearing housing longitudinal axis.Type: ApplicationFiled: March 18, 2020Publication date: July 9, 2020Inventors: Sheldon RITCHIE, Chad FEDDEMA
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Patent number: 10633919Abstract: A bearing housing for a bottomhole assembly of a downhole tool includes an upper bearing housing, lower bearing housing, and a driveshaft. The upper bearing housing and lower bearing housing include a bore defining a bore longitudinal axis. The outer surface of the upper bearing housing defining a bearing housing longitudinal axis, the bearing housing longitudinal axis formed at an angle to the bore longitudinal axis. The upper bearing housing may be formed by forming a bore through an upper bearing housing blank and subsequently forming the outer surface of the upper bearing housing concentric with the bearing housing longitudinal axis.Type: GrantFiled: October 21, 2017Date of Patent: April 28, 2020Assignee: TURBO DRILL INDUSTRIESInventors: Sheldon Ritchie, Chad Feddema
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Patent number: 10612316Abstract: A universal joint includes a joint housing and a joint shaft. The joint housing includes a socket having one or more recesses. The joint shaft includes a head positioned in the socket of the joint housing. The head includes one or more lobes corresponding with the recesses of the socket. The universal joint includes a drive key positioned between each lobe drive face and each recess drive face and an anti-backlash key positioned between each lobe back face and each recess back face.Type: GrantFiled: July 26, 2018Date of Patent: April 7, 2020Assignee: TURBO DRILL INDUSTRIES, INC.Inventors: Sheldon Ritchie, Chad Feddema
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Patent number: 10550689Abstract: A pressure pulse tool includes a tool housing, a valve disposed in the housing and having first and second valve components that are each rotatable relative to the housing and that cooperate to open and close a fluid flow path through the valve. The tool may include first and second power section coupled to the first and second valve components, respectively, for rotating the respective valve components. The power sections may each include a turbine rotor and the first and second rotors may have different geometries or may be powered by different amounts of fluid flow therethrough. Flowing fluid through the tool generates a pressure pulse having a desired pressure pulse frequency that may be lower than the first or second turbine rotor would generate alone.Type: GrantFiled: April 6, 2018Date of Patent: February 4, 2020Assignee: TURBO DRILL INDUSTRIES, INC.Inventors: Sheldon Ritchie, Chad Feddema, Malcolm Grant
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Publication number: 20190032421Abstract: A universal joint includes a joint housing and a joint shaft. The joint housing includes a socket having one or more recesses. The joint shaft includes a head positioned in the socket of the joint housing. The head includes one or more lobes corresponding with the recesses of the socket. The universal joint includes a drive key positioned between each lobe drive face and each recess drive face and an anti-backlash key positioned between each lobe back face and each recess back face.Type: ApplicationFiled: July 26, 2018Publication date: January 31, 2019Inventors: Sheldon RITCHIE, Chad FEDDEMA
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Patent number: 10113362Abstract: An offset shaft bearing assembly includes a drive shaft extending through an outer housing. The drive shaft centerline is at an angle to the centerline of the outer housing. The shaft is coupled to the outer housing by radiused conical bearings which act as thrust and radial bearings. At least one of the radiused conical bearings is offset from the centerline of the outer housing. The radiused conical bearings may include a curved bearing surface, allowing the radiused conical bearings to operate despite angular misalignment.Type: GrantFiled: April 22, 2016Date of Patent: October 30, 2018Assignee: TURBO DRILL INDUSTRIES, INC.Inventors: Sheldon Ritchie, Chad Feddema
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Publication number: 20180291733Abstract: A pressure pulse tool includes a tool housing, a valve disposed in the housing and having first and second valve components that are each rotatable relative to the housing and that cooperate to open and close a fluid flow path through the valve. The tool may include first and second power section coupled to the first and second valve components, respectively, for rotating the respective valve components. The power sections may each include a turbine rotor and the first and second rotors may have different geometries or may be powered by different amounts of fluid flow therethrough. Flowing fluid through the tool generates a pressure pulse having a desired pressure pulse frequency that may be lower than the first or second turbine rotor would generate alone.Type: ApplicationFiled: April 6, 2018Publication date: October 11, 2018Inventors: Sheldon RITCHIE, Chad FEDDEMA, Malcolm GRANT
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Publication number: 20180112465Abstract: A bearing housing for a bottomhole assembly of a downhole tool includes an upper bearing housing, lower bearing housing, and a driveshaft. The upper bearing housing and lower bearing housing include a bore defining a bore longitudinal axis. The outer surface of the upper bearing housing defining a bearing housing longitudinal axis, the bearing housing longitudinal axis formed at an angle to the bore longitudinal axis. The upper bearing housing may be formed by forming a bore through an upper bearing housing blank and subsequently forming the outer surface of the upper bearing housing concentric with the bearing housing longitudinal axis.Type: ApplicationFiled: October 21, 2017Publication date: April 26, 2018Inventors: Sheldon RITCHIE, Chad FEDDEMA
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Publication number: 20180066513Abstract: A drilling dynamics data recorder is positioned within a slot in a downhole tool. The drilling dynamics data recorder may include a sensor package, the sensor package including one or more drilling dynamics sensors and a processor, the processor in data communication with the one or more drilling dynamics sensors. The drilling dynamics data recorder may also include a memory module, the memory module in data communication with the one or more drilling dynamics sensors and a communication port, the communication port in data communication with the memory module. The drilling dynamics data recorder may further include an electrical energy source, the electrical energy source in electrical communication with the memory module, the one or more drilling dynamics sensors, and the processor.Type: ApplicationFiled: August 15, 2017Publication date: March 8, 2018Inventors: Junichi SUGIURA, Stephen JONES, Sheldon RITCHIE, Chad FEDDEMA
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Publication number: 20160312535Abstract: An offset shaft bearing assembly includes a drive shaft extending through an outer housing. The drive shaft centerline is at an angle to the centerline of the outer housing. The shaft is coupled to the outer housing by radiused conical bearings which act as thrust and radial bearings. At least one of the radiused conical bearings is offset from the centerline of the outer housing. The radiused conical bearings may include a curved bearing surface, allowing the radiused conical bearings to operate despite angular misalignment.Type: ApplicationFiled: April 22, 2016Publication date: October 27, 2016Inventors: Sheldon RITCHIE, Chad FEDDEMA